2021340001099 has 4 divisors (see below), whose sum is σ = 2021384114640. Its totient is φ = 2021295887560.

The previous prime is 2021340001091. The next prime is 2021340001159. The reversal of 2021340001099 is 9901000431202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2021340001099 - 2³ = 2021340001091 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2021340001099.

It is not an unprimeable number, because it can be changed into a prime (2021340001091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21987967 + ... + 22079704.

It is an arithmetic number, because the mean of its divisors is an integer number (505346028660).

Almost surely, 2^{2021340001099} is an apocalyptic number.

2021340001099 is a deficient number, since it is larger than the sum of its proper divisors (44113541).

2021340001099 is an equidigital number, since it uses as much as digits as its factorization.

2021340001099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44113540.

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 2021340001099 in words is "two trillion, twenty-one billion, three hundred forty million, one thousand, ninety-nine".